698252052879 has 24 divisors (see below), whose sum is σ = 1030597281792. Its totient is φ = 455353063440.

The previous prime is 698252052847. The next prime is 698252052917. The reversal of 698252052879 is 978250252896.

698252052879 is a `hidden beast` number, since 6 + 9 + 82 + 5 + 20 + 528 + 7 + 9 = 666.

It is not a de Polignac number, because 698252052879 - 2⁵ = 698252052847 is a prime.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (698252052809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 350302 + ... + 1232564.

It is an arithmetic number, because the mean of its divisors is an integer number (42941553408).

Almost surely, 2^698252052879 is an apocalyptic number.

698252052879 is a deficient number, since it is larger than the sum of its proper divisors (332345228913).

698252052879 is a wasteful number, since it uses less digits than its factorization.

698252052879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 884187 (or 884184 counting only the distinct ones).

The product of its (nonzero) digits is 43545600, while the sum is 63.

The spelling of 698252052879 in words is "six hundred ninety-eight billion, two hundred fifty-two million, fifty-two thousand, eight hundred seventy-nine".